First two levels were quite good. Though others... It looks like they were VERY hastily made. Too many pointless dead-ends that lead nowhere, making you lose the desire to explore anything further. Although I love just wandering around in backrooms games and all the walking simulators, not bumping into monsters, but only encountering interactive things. Here I didn't find any.
Speaking of music... it's nice, especially in the first two chapters, but because of the fact that it's a loop - got bored after a few repeats. Unfortunately, somewhere there are sounds of footsteps, somewhere there are not.
In general, amazing work with light, liked the flashlight, but everything else - not at all.